<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org>
<head>
    <meta charset="UTF-8">
    <title>Title</title>
<style>
    body{
        background-color: #0093E9;
        background-image: linear-gradient(160deg, #0093E9 0%, #80D0C7 100%);
    }
</style>
</head>
<h1>登录界面</h1>
<body>
   <div>
       <form th:action="@{/login}">
           <span th:text="${msg}" style="color: red"></span>
           <p>用户名:<input type="text" placeholder="请输入用户名" name="username"></p>
           <p>密码:<input type="password" placeholder="请输入密码" name="password"></p>
           <input type="submit">
       </form>
   </div>

</body>
</html>